Unless that has jumped to 10-15%, or jumped in any meaningful way, you're just seeing inflation, not gouging. Generally, grocers are among those businesses with the least pricing power.
https://www.reuters.com/markets/europe/savings-algorithms-uk...
The whole point with inflation is that nobody knows what future price-levels are going to be, so there's upward price instability. Everyone is trying to gauge how much to raise things -- and of course, they tend to overshoot, which leads to a higher rate of inflation. That's what makes inflation so pernicious, and hard to eradicate. It's not so much that a constant rate of inflation is damaging, but when increase become noticeable, people begin trying to anticipate it, and that increases the rate of change.
You'll also see this in pay negotiations: you'll see more strikes over pay raises, but it'll be very hard for unions or companies to accurate gauge what the pay rate rise should be. It's not that unions are trying to "gouge" management -- it's that the consequences of demanding too small a pay rise is the same as accepting a pay cut. So labour demands more than inflation, which in turn tends to push up the inflation rate.
I think it is very important to note that when it comes to grocery price increases, even if suppliers are raising their prices (and this isn't always the case), groceries stores aren't just passing down wholesale price increases, they're raising prices even further.
For grocery stores, this isn't an issue with (unqualified) "inflation", it's an issue of price gouging.
https://www.dailymail.co.uk/news/article-11668863/Supermarke...